Lowes indoor outdoor carpet. I spent a good amount of time with foam poster board building template, then trace to back of carpet., cut with xacto knife. $25 in materials. Double side tape, heels rest , seat pressure seems to keep all in place
Pic with tape measure two pieces of carpet, one up on seat angle, and another in flat area under seat back to hinges….split at 7.5” …. Invisible. Save the templates, cut and replace as needed in future. Did baggage floor as well, used the piece there as a template. Obviously not a 10, and my peddles are floor mounted. Good luck.